Dang, Chyros, I'm getting very impatient for you to demonstrate one of those built-in calculators. When you finally do, I'd like to put in a request for not only examples of addition and subtraction, but of multiplication and division as well. Perhaps you'll even be willing to announce the operands and results as you go, and—although this may be asking a bit much—to put the memory functions through their paces. You're the only guy we know who can make those sorts of things sound like Shakespeare.
